Steel Buildings in Europe

Title A.2 Worked Example – Simply supported beam with intermediate lateral restraints 2 of 7 4 – 65 1 2 3 x 5,00m 6 x 2,50 m 1 : Lateral restraints (purlins) 2 : Lateral restraints (bracing system) Bracing system The beam is laterally restrained at the supports. The upper flanges are restrained by the purlins (at 2,50 m spacing) and the lower flanges by struts (at 5,00 m spacing). The beam is fabricated with a pre-camber equal to l/500, w c = 30 mm. 2.4. Choose a section Try IPE 400 – Steel grade S235 2.4.1. Geometric properties Depth h = 400 mm Web Depth h w = 373 mm Width b = 180 mm Web thickness t w = 8,6 mm Flange thickness t f = 13,5 mm Root radius r = 21 mm Mass 66,3 kg/m Section area A = 84,46 cm 2 h w y y r z z t f t w b h